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Diffstat (limited to 'src/mixer/OssMixerPlugin.cxx')
| -rw-r--r-- | src/mixer/OssMixerPlugin.cxx | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/src/mixer/OssMixerPlugin.cxx b/src/mixer/OssMixerPlugin.cxx deleted file mode 100644 index 0a459bc97..000000000 --- a/src/mixer/OssMixerPlugin.cxx +++ /dev/null @@ -1,243 +0,0 @@ -/* - * Copyright (C) 2003-2013 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include "config.h" -#include "MixerInternal.hxx" -#include "OutputAPI.hxx" -#include "system/fd_util.h" -#include "util/ASCII.hxx" -#include "util/Error.hxx" -#include "util/Domain.hxx" -#include "Log.hxx" - -#include <assert.h> -#include <string.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <fcntl.h> -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> - -#if defined(__OpenBSD__) || defined(__NetBSD__) -# include <soundcard.h> -#else /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ -# include <sys/soundcard.h> -#endif /* !(defined(__OpenBSD__) || defined(__NetBSD__) */ - -#define VOLUME_MIXER_OSS_DEFAULT "/dev/mixer" - -class OssMixer : public Mixer { - const char *device; - const char *control; - - int device_fd; - int volume_control; - -public: - OssMixer():Mixer(oss_mixer_plugin) {} - - bool Configure(const config_param ¶m, Error &error); - bool Open(Error &error); - void Close(); - - int GetVolume(Error &error); - bool SetVolume(unsigned volume, Error &error); -}; - -static constexpr Domain oss_mixer_domain("oss_mixer"); - -static int -oss_find_mixer(const char *name) -{ - const char *labels[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_LABELS; - size_t name_length = strlen(name); - - for (unsigned i = 0; i < SOUND_MIXER_NRDEVICES; i++) { - if (StringEqualsCaseASCII(name, labels[i], name_length) && - (labels[i][name_length] == 0 || - labels[i][name_length] == ' ')) - return i; - } - return -1; -} - -inline bool -OssMixer::Configure(const config_param ¶m, Error &error) -{ - device = param.GetBlockValue("mixer_device", VOLUME_MIXER_OSS_DEFAULT); - control = param.GetBlockValue("mixer_control"); - - if (control != NULL) { - volume_control = oss_find_mixer(control); - if (volume_control < 0) { - error.Format(oss_mixer_domain, 0, - "no such mixer control: %s", control); - return false; - } - } else - volume_control = SOUND_MIXER_PCM; - - return true; -} - -static Mixer * -oss_mixer_init(gcc_unused void *ao, const config_param ¶m, - Error &error) -{ - OssMixer *om = new OssMixer(); - - if (!om->Configure(param, error)) { - delete om; - return nullptr; - } - - return om; -} - -static void -oss_mixer_finish(Mixer *data) -{ - OssMixer *om = (OssMixer *) data; - - delete om; -} - -void -OssMixer::Close() -{ - assert(device_fd >= 0); - - close(device_fd); -} - -static void -oss_mixer_close(Mixer *data) -{ - OssMixer *om = (OssMixer *) data; - om->Close(); -} - -inline bool -OssMixer::Open(Error &error) -{ - device_fd = open_cloexec(device, O_RDONLY, 0); - if (device_fd < 0) { - error.FormatErrno("failed to open %s", device); - return false; - } - - if (control) { - int devmask = 0; - - if (ioctl(device_fd, SOUND_MIXER_READ_DEVMASK, &devmask) < 0) { - error.SetErrno("READ_DEVMASK failed"); - Close(); - return false; - } - - if (((1 << volume_control) & devmask) == 0) { - error.Format(oss_mixer_domain, 0, - "mixer control \"%s\" not usable", - control); - Close(); - return false; - } - } - - return true; -} - -static bool -oss_mixer_open(Mixer *data, Error &error) -{ - OssMixer *om = (OssMixer *) data; - - return om->Open(error); -} - -inline int -OssMixer::GetVolume(Error &error) -{ - int left, right, level; - int ret; - - assert(device_fd >= 0); - - ret = ioctl(device_fd, MIXER_READ(volume_control), &level); - if (ret < 0) { - error.SetErrno("failed to read OSS volume"); - return false; - } - - left = level & 0xff; - right = (level & 0xff00) >> 8; - - if (left != right) { - FormatWarning(oss_mixer_domain, - "volume for left and right is not the same, \"%i\" and " - "\"%i\"\n", left, right); - } - - return left; -} - -static int -oss_mixer_get_volume(Mixer *mixer, Error &error) -{ - OssMixer *om = (OssMixer *)mixer; - return om->GetVolume(error); -} - -inline bool -OssMixer::SetVolume(unsigned volume, Error &error) -{ - int level; - int ret; - - assert(device_fd >= 0); - assert(volume <= 100); - - level = (volume << 8) + volume; - - ret = ioctl(device_fd, MIXER_WRITE(volume_control), &level); - if (ret < 0) { - error.SetErrno("failed to set OSS volume"); - return false; - } - - return true; -} - -static bool -oss_mixer_set_volume(Mixer *mixer, unsigned volume, Error &error) -{ - OssMixer *om = (OssMixer *)mixer; - return om->SetVolume(volume, error); -} - -const struct mixer_plugin oss_mixer_plugin = { - oss_mixer_init, - oss_mixer_finish, - oss_mixer_open, - oss_mixer_close, - oss_mixer_get_volume, - oss_mixer_set_volume, - true, -}; |